There are 1 questions in this calculation: for each question, the 1 derivative of u is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ arccos(h)(\frac{u}{a})\ with\ respect\ to\ u：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = \frac{uarccos(h)}{a}\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( \frac{uarccos(h)}{a}\right)}{du}\\=&\frac{arccos(h)}{a} + \frac{u(\frac{-(0)}{((1 - (h)^{2})^{\frac{1}{2}})})}{a}\\=&\frac{arccos(h)}{a}\\ \end{split}\end{equation} \]

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